92 lines
2.4 KiB
Plaintext
92 lines
2.4 KiB
Plaintext
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package com.securityControl.common.core.utils.file;
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import java.io.*;
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import java.net.URL;
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import java.net.URLConnection;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.util.Arrays;
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import java.util.Base64;
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import org.apache.poi.util.IOUtils;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* 图片处理工具类
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*
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* @author czc
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*/
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public class ImageUtils {
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private static final Logger log = LoggerFactory.getLogger(ImageUtils.class);
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public static byte[] getImage(String imagePath) {
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InputStream is = getFile(imagePath);
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try {
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return IOUtils.toByteArray(is);
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} catch (Exception e) {
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log.error("图片加载异常 {}", e);
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return null;
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} finally {
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IOUtils.closeQuietly(is);
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}
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}
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public static InputStream getFile(String imagePath) {
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try {
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byte[] result = readFile(imagePath);
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result = Arrays.copyOf(result, result.length);
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return new ByteArrayInputStream(result);
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} catch (Exception e) {
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log.error("获取图片异常 {}", e);
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}
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return null;
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}
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/**
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* 读取文件为字节数据
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*
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* @param url 地址
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* @return 字节数据
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*/
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public static byte[] readFile(String url) {
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InputStream in = null;
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try {
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// 网络地址
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URL urlObj = new URL(url);
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URLConnection urlConnection = urlObj.openConnection();
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urlConnection.setConnectTimeout(30 * 1000);
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urlConnection.setReadTimeout(60 * 1000);
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urlConnection.setDoInput(true);
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in = urlConnection.getInputStream();
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return IOUtils.toByteArray(in);
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} catch (Exception e) {
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log.error("访问文件异常 {}", e);
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return null;
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} finally {
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IOUtils.closeQuietly(in);
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}
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}
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/**
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* 图片转Base64
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*
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* @param imgFile 图片地址
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* @return base64字符串
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*/
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public static String getImgBase(String imgFile) {
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InputStream in = null;
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byte[] data = null;
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try {
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in = Files.newInputStream(Paths.get(imgFile));
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data = new byte[in.available()];
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in.read(data);
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in.close();
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} catch (IOException e) {
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log.error(e.getMessage());
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}
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return Base64.getEncoder().encodeToString(data);
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}
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}
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